Binder for textile machinery



Sept. 10,1929. H. PULSTER BINDER FOR TEXTILE MACHINERY Filed Jan. 25,1928 Patented Sept. 10,1929.

PATENT lorries.

"UNITED STATES ma! mill, I'IIIIYLVAIIA.

- mu I03 mum. ncmmnnr. 7 Application filed January 88, 1988. Serial Io.840,84.

The object of the invention is to 'rovide improvements in certaindetails of t e construction and operation of textile machinery and moreparticularly in a type of machine used to knit tubes such as are used inthe formation of certain kinds of stockings, socks, and the like.

In circular knitting machines, especially when several yarns ofdifferent size, color,

10 or material are being used, the threads which are severed and notactually being worked at a given moment are constantly 1n danger of sliping, and in fact do often slip, free from t e single binder heretoforeemployed,

1 with the result that each machine requires constant tending, so-calledpress-offs and drop stitches occur, and the resulting tube can only beused in a finished article of second quality, or must be rejectedaltogether.

The object therefore is to provide an improvement in the mechanism whichholds the ends of severed threads, and through which the threads ofvarious sizes, colors, or materials are an plied to the needles.

Also, in addition to the single sprin -pressed liftable binderheretofore employe 1n con tact with a yielding cushion or platen, asecond such binder is provided in addition to a plurality of resilientor auxiliary fingers,

80 which are constantly in engagement with the surface over. which thethreads pass, and at all times cooperate with each other and with theliftable binders, to positively prevent the escape of a sin le thread atany time from a position accessi 1e to the needles.

A further object is to provide a beading or flange, which rises raduallyfrom the surrounding surface of e thread support, and surrounds theperipheral edge portion of the cushion or platen to protect the latterand its connection with said surface, and prevent threads from enteringbeneath said platen, loosening a portion of its edge, and causing thethreads to sna or catch thereon instead of entering freely neath theliftable binders and a knife in proximity thereto.

With these and other ob ects in mind, the present invention comprisesfurther details of construction and operation which are fully broughtout in the following description,

when read inconjunction with the accompanying draw1ngs,in which Fig. 1is a top plan v ew of that portion of a knitting machine involving thepresent invention; Fig. 2 is an elevation of the same, Fig. 3 is a framentary elevation of the same showing t e knife and liftable binders inraised position; ind Fig. 4 is a section on the line 4-4 of 1g. Theembodiment of the invention here illustrated comprises a suitablebracket1 by which the device is attached in suitable manher to the frame of aknitting machine, said bracket comprising an uprig t portion 2, to theunder side of which is secured a r 3, adapted to mesh with and berotated y another gear or circular rack (not shown). Upon said uprightportion there is secured a disc 4, having an upwardl extendingcylindrical flange 5, the radia ly outer surface 7 of which flange is acontinuation of the correspondin surface of said disc, and said surfaceof cyllndrical shape being provided with upwardly extending parallelspurs 6 between w ch needles (not shown) are adapted to reciprocate.

Supported above the upper surface of the d1s c 4 y any suitable means isa disc 8, comprising a platform, the upper surface of which is hollowedout at one point 9 and surrounded by an n wardly extendin flange 10,which surroun sand incloses t e edge portions of ayielding cushion orplaten 11 made of pig skin or other suitable'material, the outwardlydirected surfaceofsaid flan e merging very gradually into the surrouning surface of said platform disc 8, so that a thread 12 passinglaterally acrosssaid platform is raised in the vicinity of the hollowedout region 9 until it passes freely over the edges of, and extendsacross, said platen 11. A

The upwardly extending portion 2 of the bracket 1 is furthermoreprovided with a laterally extending arm 13, which terminates outwardlyin a second bracket 14 which extends upwardly beyond'the level of theplatform 8 and u on which'is mounted ahead 15 b any suita 1e means, suchfor-instance as l t e spaced screws 16, said head comprising an platfor1 ISO 8 through an integral connectmg portion 17. The head i5 isprovided'wlth an angu-larly directed substantially vertically extendinsurface 18,,to which a pair of indeendent Tiftable binders 19 areivoted, said hinders being lifted s ring 20, such for instance as thewire spring siiown in Fig. 1, which at one end engages the pivealsupport 21 of said binders and at 1ts op oslte end extends beneath thelatter.

he head is provided also with a second substantially verticallyextending surface 22, to which is pivotally secured through a bolt 23 anarm 24, the free end portion 25 of which bears against the upper.surface of the respective liftable binders 19, said arm 24 alsosupporting in pivotal engagement the upper bifurcated portion 26 of adepending kmfeblade 27, which is maintained in engage- 'ment with theedge 28 of a segmental cutaway portion of the platform disc 8, by meansof any suitable t pe of spring 29 extending between said bla c and thescrew or bolt 23 or other fixed portion of the device.

In addition to the liftable binders 19, there is also secured to thesurface 18 of the head 15 a lever 30 by means of a bolt 31, one endportion 32'of said lever being in normal engagement with a movableportion of the textile machine (not shown), while the opposite free endortion 33' of said lever is ada ted to bear against the upper surface oft e free end rtion25 of the-arm 24 for a purpose hereinafter described.Also in addition to the liftable binders 19 there extend across and inyielding uniform contact with the upper surface of the latform disc 8(held in place by the screw 7 a plurality of resilient fingers orauxiliary binders 34, the outer free ends 35 of which are turnedupwardly so as to assist in permitting threads of yarn to be quicklyentered beneath them. while the opposite or fixed ends of said auxiliarybinders are secured beneath the bolt 7 or other suitable means. Stillfurthermore, a thread guide 36 has a fixed end also secured beneath thebolt 7, while its angularly directedfree end portion 37 extendsoutwardly beyond the limits of the spurs 6 and throughout its len th isin spacedrelation with the platform isc 8 said guide bein 'relativelystiffer than, an as its name imp ies merely designed to assist inguiding threads beneath, the yielding auxiliary binders 34.

In the operation of the device, several threads 'of yarn of differingsize, color, ma-

terial, et cetera, extend across the upper surface of the disc 8 beneaththe auxiliar binders 34 and also beneath the liftable inders 19, beingheld by the latter in frictional contact wit the corrugations 11' in theplaten 11 and their freely extendin ends having been reviously shearedby t e knife blade 27.

uring the operation of the knife mechanism,

by means 0 any suitable integrail1 upward and lateral extension of thethe proper thread is caught by one of the spurs 6 and drawn intooperating proximity with the needles (not shown in the drawings),

the loop of said thread caught'by the spur is to the downward pressureof the free end portion 39 of a laminated spring secured beneath thebolts-or'screws 16 in the head 15 upon the oppositely directed free endportion 40 of the arm 24. Practically immediately after the rise of saidliftable binders 1'9 and the blade 27 the thread before mentioned assesbeneath the former and is cut by the atter, the end of said threadextending across said platen being immediately caught b and held eneathsaid liftable binders w ich have descended under and by virtue of theaction of the lever head 33 against the combined pressures of thesprings 20 and 39, after which the thread cannot become loosened fromcontact with said platen until said liftable bindersare again permittedto rise. Also after the liftable binders rise in each case, theauxiliary binders 34 continue to hold the thread-against the platformdisc 8 and prevent its accidental removal laterally therefrom.

Having thus described my invention, what I claim as new and desire toprotect by Letters Patent of the United States is:

1. An attachment for textile machines, comprisinga platform, a platen ofrelatively yielding material carried by said platform, a bindersupported in pivotal relation with said platform and adapted to bearagainst said. laten, and a beadmg surrounding said platen and raduallymerging into the surface of said platform, to prevent threads fromentering beneath and separating said platen from said platform.

2. An attachment for textile machines, com rising a platform, a platenof relatively yiel ing material carried by said platform, a bindersupported in pivotal relation with said platform and adapted to bearagainst said platen, a beading surrounding said platen and aduallymerging into t e surface of sai platform, to prevent threads fromentering beneath and se arating said laten from said platform, an anauxiliary inder fixed at one portion with relation to, and its free endportion adapted to bear yieldingly against, said platform.

3. An attachment for textile machines, comprising a platform, a platenof relatively yielding material carried by said platform, a headingsurrounding said platform and operative to neath and ber fixed at oneend with respect to said platform and with its free end in yieldingengagement with said platform.

comprising a platform,

5. An attachment for textile comprising a platform, a platen ofrelatively yielding material carried by said platform, a beadingsurrounding said platform and operativeto prevent threads from enteringbeneath and separating said platen from said platform, a pair ofindependent binders pivotally mounted with respect to said platform andadapted to engage said platen, and an auxiliary binder comprising aresilient member fixed at one end with respect to said platform and withits free end in yielding engagement with said platform, being spacedfrom said platform and opmachines,

erative to guide threads under each binder.

6. An attachment for textile machines, comprising a platform, a platenof relatively yielding material carried by said platform, a beadingsurrounding said platform and operative to prevent threads from enteringbeneath and separating said platen from said platform, otally mountedwith respect to said platform and adapted to engage said platen, andmeans to guide threads under said binders.

7. An attachment for textile machines, a platen of relatively yieldingmaterial carried by said latform, a beading surrounding said plat ormand operative to prevent threads from entering beneathand separatingsaid platen from said platform, a pair ofindependent binders pivotallymounted with respect to said platform and adapted to engage said platen,and an auxiliary binder comprising a resilient member fixed at one endwith respect to said platform and with its free end in yieldingengagement with said platform, said last-named inder being alsooperative as a means to guide threads beneath each of said 8. Anattachment for textile machines, comprising a platform, a platen ofrelatively yielding material carried by said platform, a headingsurrounding said platform and operative to prevent threads from enteringbeneath and separating said platen from said binders.

platform, a pair of independent binders pivits free end,

a pair of independent binders pivotally mounted with respect to saidplatform and adapted to engage said platen, and a pair of auxiliarybinders comprising a resilient member having an intermediate portionfixed with res ect to said platform, and its free end portlons in normalyielding relation with said latform.

9. in attachment for textile machines, com rising a platform, a platenof relatively yiel ing material carried by said platform, a beadingsurrounding said platform and operative to prevent threads from enteringbeneath and separating said platen from said platform, a pair ofindependent binders pivotally mounted with respect to said platform andadapted to engage said platen, a pair of auxiliary binders comprising aresilient member having an intermediate portion fixed with respect tosaid platform, and its free end portions in normal yielding relationwith said platform, and a guide member having one end fixed with respectto said platform and extending in substantially parallel and slightlyspaced relation therewith.

In testimony whereof I have aflixed my signature.

HENRY PULSTER.

